Insulated driving connection



May 31, 1932. w. E. KROTEE INSULATED DRIVING CONNECTION Filed y 26, 1929 Wal tE r. E K I JIZ W- @M 1.; be of a character to establish a driving lation may Patented May 31, 1932 'UNITED STATES PATENT OFFICE WALTER E. KRO'IEE, OF PHILADELPHIA, PENNSYLVANIA INSULATED DRIVING oolvivncrron Application filedJ'uly 26, 1929. Serial No. 381,372.

(GRANTED UNDER THE ACT OF MARCH 3, 1883, AS AMENDED APRIL 30,1928; 370 0. G. 757)" The invention described herein may be manufactured and used by or for the Govern- In certainclasses of sound apparatus suchas those employed in locating the source of m sound of a moving object, for instance, an

airplane, the horns are mounted on ,a support for movement in azimuth and elevation.

In order to damp out any sound vibrations which arise from metallic actuating parts or electrical apparatus on the support it has been proposed to form a bearing of a sound damping material. Since the mechanism for moving the sound apparatus in elevation must be directly connected thereto the bearing must connection between the parts. i

The purpose of the present invention is to provide a novel arrangement of an insulated drivin connection in which the insue adjusted tocompensate for shrinkage and its assembly facilitated.

With the foregoing and other objects in view, the invention resides in the novelarrangement and combination of parts and in In; the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from-the spirit of the invention.

A' practical embodiment of the invention is illustrated in the accompanying drawings, wherein: I i

Fig. 1 is a longitudinal sectional View on in the line 1-1 of Fig. 2 of a bearing, showing sleeve mounted on the support, an acoustic the improved insulated driving connection. Fig. 2 is a sectional view on the line 2-2 of Fig. 1. V V

Referring to the drawings by numerals of 4 5 reference:

There is shown a support ,5 formounting a member 6 which is to be driven through a acoustic horn forming part of an apparatus for locating'a source of sound as disclosed 1n Patent N 0. 1,7 74,826 of September 2, 1930,

is inserted through the sleeve and is support- 7 ed thereby througha bushing 9 of an insulating material.

For the purpose'of connection between the member 6 and the sleeve, the bushing is made in sections 1 010 which are placed between alternately disposed, longitudinal extending.v fins 11 and'12 formedrespectively on the outer wall of the establishing adriving;

driven member 6 and on the inner wall of l the sleeve 7. Two of the sections 10 areplaced between adjacent fins and separated by a wedge 13 which is radially movable through a cap screw 14 threaded into the member 6. The sleeve is provided with apertures 15 in connection in which all play is removed.

alinement with the screws 14 whereby the I 1 As the most eflicient type of insulation to be V employed under the circumstances is one hav-- ing a resilient body such as rubber, the pres ent arrangement will facilitate assembly and avoid the necessity for precise dimension ing of the parts involved.

I claim: I I

1. In a driving connection, a support, a sleeve mounted in the support and having internal longitudinally extending fins, an acoustic member within the sleeve having external longitudinally extending fins, the fins of the sleeve and member being alternately arranged, a pair of sound damping.

arating the sound damping members, cap

screws in each wedge threaded into the acoustic member and means for rotating the sleeve.

2. In a driving connection a support, a

member to be driven from the sleeve,isound.

members between adjacent fins, a wedge sepdamping material between. the sleeve and driven member, means on the sleeve and driven memberin engagement with sald materlal, radially movable means for compressing the material and means for driving the.

sleeve. 7

WALTER E. KROTEE. 

